{"id":54558,"date":"2025-10-18T04:36:53","date_gmt":"2025-10-17T19:36:53","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=54558"},"modified":"2025-10-18T04:36:53","modified_gmt":"2025-10-17T19:36:53","slug":"the-earthquake-experiment-watch-your-desk-turn-to-quicksand","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=54558&lang=en","title":{"rendered":"The Earthquake Experiment: Watch Your Desk Turn to Quicksand!"},"content":{"rendered":"

I’m Ken Kuwako, a Science Trainer. Every day is an experiment.<\/strong><\/p>\n

What if the ground you’re standing on suddenly turned into a wobbly, pudding-like liquid? This is ‘Liquefaction,’ a phenomenon you hear about in earthquake news. The idea of the ground turning into a liquid sounds like something out of an sci-fi movie, but it’s a terrifying reality. However, textbook explanations often leave out the most crucial part: the ‘why?’<\/p>\n

That’s why today, I’m introducing an amazing educational tool that solves the mystery of this phenomenon with just one bottle. Let’s recreate a miniature Earth right on your desk!<\/p>\n

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Liquefaction Experiment<\/p><\/div>\n

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What’s Happening Under Your Feet? Recreating Earth in a Bottle!<\/b><\/h3>\n

The teaching material we’re introducing today is Narika’s ‘Ekijocker’ (Soil Liquefaction Experiment Bottle)<\/a>. This uniquely named bottle brilliantly demonstrates what is going on right beneath our feet.<\/p>\n

Inside the bottle are white and blue particles mixed with water. Just give it a good shake and let it sit for a while. As if by magic, the larger particles sink quickly, followed by the smaller ones, slowly layering up.<\/p>\n

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In no time, a ‘geological stratum’ is complete inside the bottle. Even this alone is a great science experiment, showing how sediment accumulates at river mouths and lake beds. But the real show of the ‘Ekijocker’ is about to begin.<\/p>\n

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Earthquake! Shake the Bottle and Trigger Liquefaction!<\/b><\/h3>\n

Once the layers are formed, it’s time for the main event. Let’s give the bottle an ‘earthquake’ shock. <\/p>\n

[Experiment Procedure]<\/b><\/h4>\n
    \u00a0 <\/p>\n
  1. Shake the bottle well to mix the particles inside.<\/li>\n

    \u00a0 <\/p>\n

  2. Place it on a desk and wait for the particles to settle, forming beautiful strata. (It takes just a few minutes.)<\/li>\n

    \u00a0 <\/p>\n

  3. Once the layers are formed, gently and continuously tap the side of the bottle with your finger. This simulates the ‘earthquake tremor’!<\/li>\n<\/ol>\n

    Now, what will happen to the layers inside? Watch the shocking moment in this video:<\/p>\n